We stand to the side during Communion to watch and ensure each person consumes the host before returning to their seat. Have never had a problem but there are enough stories about Satanists trying to get their hands on one that you must remain on guard.
How do you tell if it was consumed or not?
Freegards
You ever work with a professional illusionist on your security procedures? If you don’t, you might want to consider doing so.
I’m pretty sure that, with my basic and decidely amateur “pull a coin from behind someone’s ear” skills I could obtain a consecrated host wherever and whenever I wanted to. At least based on what Ive observed going to RC Mass with my RC wife ..